Bill Gates has made many contributions ...ur... throughout the last 25 or 30 years, most of all, of course, the Windows Operating System, which more than 90% of all computers in the world use today. H

发表于:2018-12-11 / 阅读(44) / 评论(0) 分类 万花筒2006年

Forcing Electrons into Superconducting Line In a study in the journal Nature researchers created a pseudo gap, in which electrons in superconducting materials line up just before flowing resistance-free. Sonya Buyting reports Imagine a world with lev

发表于:2019-01-02 / 阅读(150) / 评论(0) 分类 60秒科学

VOA Learning English presents America's Presidents. Today we are talking about George Washington. He was the first president of the United States. He served from 1789 to 1797. But he had many other accomplishments, too. He owned thousands of hectares

发表于:2019-01-02 / 阅读(98) / 评论(0) 分类 2017年VOA慢速英语(二)月

d-Pinoresinoldi-O-b-glucopyranoside 松脂酚双吡喃葡萄糖甙 d-Pinoresinol d-松脂素 Piperitone 胡椒酮 Plantaginin 车前甙 Platycodin A, C, D 桔梗皂甙A,C,D Podophyllotoxin 鬼臼毒

发表于:2019-01-03 / 阅读(87) / 评论(0) 分类 医务英语

假的,都是假的,真的我一定不会是这样的成绩的。 fake adj. 假的;冒充的 n. 仿造品;冒充者;骗子 v. 伪造;捏造;冒充;假装;欺骗 Im sure that I take a fake examination. 我确定我考了一个假试。 sham adj. 虚

发表于:2019-01-03 / 阅读(90) / 评论(0) 分类 英文语法词汇

Topic 1-Scarce Students in Rural Schools There is a primary school that only has one student in Wuzhai County of Shanxi Province. It is not a school for the super rich, but rather a rural school in remote areas. In fact, we are seeing more schools li

发表于:2019-02-22 / 阅读(118) / 评论(0) 分类 英语角-圆桌会议